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Finding the Fourth Proportional to 18,464.80, 25,482.24 and 10,507.84

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Solution

The fourth proportional to 18,464.80, 25,482.24 and 10,507.84 is: 14,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.80 : 25,482.24 = 10,507.84 : x
  2. Step 2: Convert to fraction form
    18,464.80/25,482.24 = 10,507.84/x
  3. Step 3: Cross multiply
    18,464.80x = 25,482.24 × 10,507.84
  4. Step 4: Simplify right side
    18,464.80x = 267,763,300.76
  5. Step 5: Solve for x
    x = 267,763,300.76/18,464.80
  6. Step 6: Final answer
    x = 14,501.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.